/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.monkeyrunner.adb.image;
import com.android.ddmlib.RawImage;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.ColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.Raster;
/**
* Internal color model used to do conversion of 32bpp RawImages.
*/
class ThirtyTwoBitColorModel extends ColorModel {
private static final int[] BITS = {
8, 8, 8, 8,
};
private final int alphaLength;
private final int alphaMask;
private final int alphaOffset;
private final int blueMask;
private final int blueLength;
private final int blueOffset;
private final int greenMask;
private final int greenLength;
private final int greenOffset;
private final int redMask;
private final int redLength;
private final int redOffset;
public ThirtyTwoBitColorModel(RawImage rawImage) {
super(32, BITS, ColorSpace.getInstance(ColorSpace.CS_sRGB),
true, false, Transparency.TRANSLUCENT,
DataBuffer.TYPE_BYTE);
redOffset = rawImage.red_offset;
redLength = rawImage.red_length;
redMask = ImageUtils.getMask(redLength);
greenOffset = rawImage.green_offset;
greenLength = rawImage.green_length;
greenMask = ImageUtils.getMask(greenLength);
blueOffset = rawImage.blue_offset;
blueLength = rawImage.blue_length;
blueMask = ImageUtils.getMask(blueLength);
alphaLength = rawImage.alpha_length;
alphaOffset = rawImage.alpha_offset;
alphaMask = ImageUtils.getMask(alphaLength);
}
@Override
public boolean isCompatibleRaster(Raster raster) {
return true;
}
private int getPixel(Object inData) {
byte[] data = (byte[]) inData;
int value = data[0] & 0x00FF;
value |= (data[1] & 0x00FF) << 8;
value |= (data[2] & 0x00FF) << 16;
value |= (data[3] & 0x00FF) << 24;
return value;
}
@Override
public int getAlpha(Object inData) {
int pixel = getPixel(inData);
if(alphaLength == 0) {
return 0xff;
}
return ((pixel >>> alphaOffset) & alphaMask) << (8 - alphaLength);
}
@Override
public int getBlue(Object inData) {
int pixel = getPixel(inData);
return ((pixel >>> blueOffset) & blueMask) << (8 - blueLength);
}
@Override
public int getGreen(Object inData) {
int pixel = getPixel(inData);
return ((pixel >>> greenOffset) & greenMask) << (8 - greenLength);
}
@Override
public int getRed(Object inData) {
int pixel = getPixel(inData);
return ((pixel >>> redOffset) & redMask) << (8 - redLength);
}
@Override
public int getAlpha(int pixel) {
throw new UnsupportedOperationException();
}
@Override
public int getBlue(int pixel) {
throw new UnsupportedOperationException();
}
@Override
public int getGreen(int pixel) {
throw new UnsupportedOperationException();
}
@Override
public int getRed(int pixel) {
throw new UnsupportedOperationException();
}
}